| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roller bearing capable of reducing a retainer noise even in a low temperature milieu by clarifying the relationship of the retainer noise with the clearance between a pocket of a retainer and a rolling element and the amount of a thickening agent. <P>SOLUTION: The roller bearing is provided with an outer ring provided with a rolling track on an inner perimeter, an inner ring provided with a rolling track on an outer perimeter, a plurality of rolling elements arranged between each rolling track of the inner ring and the outer ring, and the retainer having a plurality of pockets rotatably securing the rolling elements and shaped of resin and lubricated with grease. Using grease with 20 mass percentage of a thickening agent, the radial clearance ratio is set to 0≤δrDa≤0.09, and the axial clearance ratio to 0≤δa/Da≤0.06. <P>COPYRIGHT: (C)2004,JPO |
